About D&W Mechanical Your Superior Geothermal Source in Traverse City If you are searching for a company that is a one-stop shop for all your WaterFurnace Traverse City geothermal heating and cooling needs, you can depend on D&W Mechanical to provide you with all this including... planning assistance. complete comfort system installation. routine service and maintenance. emergency repair. energy-saving advice and consultation. Our highly trained professional staff is devoted to the total satisfaction of customers throughout the Traverse City area. After all, you've picked the premium heating and cooling system on the market today. We make sure each system continues to live up to the expectations of, boosting your home's conditioning efficiency and helping you cut energy costs. Contact D&W Mechanical today to get a free estimate and a cost savings analysis for your home.